Hi all,

Yesterday I was driving down the highway and all of sudden I hear like a tire was been deflated or a rupture vacum hose, I pressed on the gas pedal and I can feel the loss of power, a minute later the check engine light came on and now, the turbo is not working. Was there a hose rupture or my turbo is dead?

Any comments will be apreciated.

This happened on my 99 E300D

Thanks

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1987 300D 208,000 miles
2004 Nissan Quest 28700
1999 E300TD 103,000

See if the turbo shaft's siezed- take off the turbo intake hose and try to turn the impeller. I don't know how easy it is to do this on your car but try it.
First I'd look at the wastegate hose to see if it just popped off for whatever reason. Then I'd look at the overboost protection system. Again, it's not the same as mine but it might be similiar in some respects.

__________________
'02 BMW 325i
'85 300D 450k
'93 190E 2.6 170k(killed by tree)
'08 Ducati Hypermotard 1100S 6k
'06 Ducati S2R800 14k(sold)

The impeler moves frelly. everythng looks connected.

__________________
1987 300D 208,000 miles
2004 Nissan Quest 28700
1999 E300TD 103,000

That whoosh could be a leaky or blown intake gasket, FUBAR'd overboost protection switch although I think it's an electronic boost signal not a pneumatic one with your car, hmm just trying to stir the thoughts a little. Does the whoosh occur anymore or was it a one-time thing? If it whooshes still but no boost there is a hole somewhere wasting the boost out of it. Since turbos are exhaust driven, mayhap the exhaust pipe has a hole or became disconnected? Intake manny has a leak? BRIAN CARLTON WHERE ARE YOU

__________________
'02 BMW 325i
'85 300D 450k
'93 190E 2.6 170k(killed by tree)
'08 Ducati Hypermotard 1100S 6k
'06 Ducati S2R800 14k(sold)

the whoosh stoped at the same time the turbo stoped working, There is a vacum hose connected on the bottom of the turbo that pushes a rod, I can move that with my fingers toards the fron of the car and sounds like is injecting gas on a gas carburator when you press on the gas.

__________________
1987 300D 208,000 miles
2004 Nissan Quest 28700
1999 E300TD 103,000

Mario,
Wow! If the impeller is not siezed and their is no turbo boost then D. Delano is probably right on with the exhaust leak in the system before the turbo.
I have a 98 E-300 TD which is set up the same as yours......when I get a break I will take a look at the plumbing on mine. Their are a couple of 2" hoses to the intercooler down low an below the radiator on the passinger side. Take a look if one of those ruptured...
FRED

__________________
FRED

Daily Driver: 98 E300TD 199K
Hobby Car: 69 Austin Mini
Past Diesels: 84 300SD, 312K
87 300SDL, 251K
94 Chev. K-1500 6.5Ltr.TD, 373K

Bingo!!! The clamp was loose and therefore the hose came off the coupler.

Thanks alot!!

I was thnking turbo$$$$$$$$$$$$$$$$$$$

__________________
1987 300D 208,000 miles
2004 Nissan Quest 28700
1999 E300TD 103,000

Thanks F18, I had a P0243 Wastegate Solenoid Failure check engine light and it repaired my E300 as well. The error was about 5 days old and with a big loss in power. I was scanning any and all Wastegate posts (for the 5th day)and came upon this post. I read it this Morning and thought sure, a bad intercooler hose and decided to check mine anyway just to eliminate the possibility. I crawled under the car and could hardly beleive my eye's, a broken and hanging hose clamp and a fully disconnected intercooler hose. 83 cents for a new hose clamp and it now runs like a Mercedes Benz again with no check engine light.
Thanks, I HATE taking it into the shop.
Paul








1998 E300

Just stumbled across this thread. I've been away for several weeks.

And, you fellows did just fine without me.

BTW....unless you have a MASSIVE pre-turbo exhaust leak you will still have reasonable boost. It will be VERY noisy yes but usually the leak starts out small enough to not affect things severly as you were mentioing.

Future reference, if you are getting engine codes and are hearing wooshing noises...chances are your car is/was overboosting and it had to cut the fuel/boost enrichment to survive.